Deuteronomy contains a rule for the division of property in polygamist marriages. Old Testament figures such as Abraham, David, Jacob and Solomon were all favored by God and were all polygamists. Solomon truly put the “poly” to polygamy with 700 wives and 300 concubines. Mohammed had 10 wives, though the Koran limits multiple wives to four. Martin Luther at one time accepted polygamy as a practical necessity. Polygamy is still present among Jews in Israel, Yemen and the Mediterranean.
Indeed, studies have found polygamy present in 78% of the world’s cultures, including some Native American tribes. (While most are polygynists — with one man and multiple women — there are polyandrists in Nepal and Tibet in which one woman has multiple male spouses.) As many as 50,000 polygamists live in the United States.
Given this history and the long religious traditions, it cannot be seriously denied that polygamy is a legitimate religious belief.”